Does it block work?
- If chat, tools, and login all work, it may only affect latency or efficiency.
- If messages interrupt, tools fail, or the app spins indefinitely, inspect the network path.
Plain-English versionWebSocket is a continuous call. HTTPS fallback is a series of short request-and-response calls. The app can still work, but behavior may be slower or less stable.
Safe investigation order
- Test without a VPN or proxy after recording the original settings.
- Check
HTTP_PROXY,HTTPS_PROXY, andNO_PROXYfor conflicts. - Try another network to separate device settings from router policy.
- Check whether a firewall blocks WebSocket upgrade requests.
- If HTTPS also fails, inspect DNS and certificates.
Success checks
- The warning disappears, or fallback is proven stable for all workflows.
- Repeated chats and tool calls complete without interruption.
- The result is reproducible and tied to proxy, VPN, firewall, or network.